Xhaka gave away a penalty in the 2-2 draw with Spurs, but remains a candidate to be Arsenal’s new captain.
Emery is poised to name a new skipper, after the departure of Laurent Koscielny during the summer and said he spoke to Xhaka after his error against Tottenham.
“We’ve been speaking — mistake, recognise that mistake, learn, correct, improve and after repeat with success.
“Every player makes mistakes, only some are magnified because the consequence is more.
“But I am really focused on the good things, on the positive performances and Xhaka has a big character and is very important for us.
“He played a very good match against Tottenham, he made a mistake that was a penalty, he knows and we are working to improve, to change that mistake in one process,” Emery told reporters, ahead of their trip to Watford on Sunday.
